Wiring structure and motor and compressor using same

Abstract

The utility model discloses a wiring structure and a motor and a compressor using the wiring structure, the wiring structure comprises a mounting plate, a binding post and an insulator, the mounting plate is sleeved on the binding post, the mounting plate is provided with a fixed threaded hole towards the outer side, the mounting plate is fixedly mounted on the inner side of the wiring board, and the insulator is arranged on the wiring board. The mounting plate is located in the motor shell, and a plurality of insulators used for insulation and sealing are arranged between the mounting plate and the binding posts. According to the scheme, the installation sequence of each component can be changed through structural adjustment, so that the binding post can be independently installed with the stator lead without reserving the length of the stator lead on the premise that the sealing performance is not influenced, the length of the stator lead before and after assembly can be kept unchanged, bending is avoided, the safety is improved, and the production efficiency is improved. The problem of high temperature of the mounting plate and the binding post is solved, and the binding post is independently connected with the stator lead, so that the binding post can be independently disassembled during disassembly, and maintenance and repair are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of compressors and motors, and in particular to a wiring structure and a motor and a compressor using the same. Background Art

[0002] With the continuous updating of compressor technology, compressors are widely used in heating, refrigeration, chemical industry and other fields. The structure of the compressor usually includes a volute, a motor housing, a main shaft and an impeller. The motor housing rotates and connects the main shaft. The outer end of the main shaft extends into the volute and connects to the impeller. The motor rotor is installed on the main shaft. The motor stator of the compressor is installed in the motor housing. The stator lead of the motor stator is led out through the wiring structure on the terminal board. For details, please refer to Figure 1 shown.

[0003] In the process of implementing the present invention, the inventors found that the current installation and use of the lead wires of the motor stator of the compressor have at least the following problems:

[0004] 1. The motor stator of the compressor is usually nested in the motor housing, and its stator lead is led out through the terminal on the terminal board. When installing, the stator lead must be clipped out and fixed on the terminal, and then the terminal is installed on the motor housing. Therefore, a certain length of the stator lead must be reserved. After installation, this part of the length is bent inside the motor housing (see Figure 1 ), there is a risk of short circuit between stator leads;

[0005] 2. The terminal mounting plate is affected by eddy currents and has a high temperature during operation. The terminal mounting plate of the existing structure is outside the motor housing (air environment), and the temperature caused by the eddy currents cannot be dissipated, affecting the performance and thus the use of the compressor.

[0006] 3. The terminal posts of the existing structure need to be disassembled as a whole for maintenance, which is troublesome.

[0007] In view of this, how to solve the problems existing in the prior art has become a topic that needs to be studied in this utility model. Utility Model Content

[0008] The utility model aims to provide a wiring structure and a motor and a compressor using the same.

[0009] To achieve the above-mentioned purpose, in the first aspect, a technical solution adopted by the utility model is: to propose a wiring structure for wiring a motor, wherein the motor has a motor housing, a motor stator, a stator lead, and a terminal block; the innovation thereof is:

[0010] A plurality of mounting holes are provided on the wiring board, and a plurality of the wiring structures are respectively installed in each of the mounting holes;

[0011] The wiring structure includes a mounting plate, a wiring post, and an insulator;

[0012] The terminal is a columnar conductor used to connect the internal and external leads of the motor stator, and lead holes are provided at both ends of the terminal.

[0013] The mounting plate is sleeved on the terminal post, a fixing threaded hole is opened on the mounting plate toward the outside, the mounting plate is fixedly mounted on the inner side of the terminal plate, and the mounting plate is located inside the motor housing;

[0014] A plurality of insulators for insulation and sealing are arranged between the mounting plate and the terminal posts.

[0015] To achieve the above-mentioned purpose, in a second aspect, a technical solution adopted by the present utility model is: proposing a motor, wherein the motor uses the wiring structure described in the first aspect of the present utility model.

[0016] To achieve the above-mentioned purpose, in a third aspect, a technical solution adopted by the present utility model is: proposing a compressor, wherein the compressor uses the wiring structure described in the first aspect of the present utility model.

[0017] The relevant contents of this utility model are explained as follows:

[0018] 1. In the utility model, some problems existing in the installation process and use process of the existing motor wiring structure are studied and designed, and the overall structure of the wiring structure is improved, wherein the mounting plate is sleeved on the terminal post, the mounting plate is fixedly mounted on the inner side of the terminal plate, the mounting plate is located inside the motor housing, and a plurality of insulators for insulation and sealing are arranged between the mounting plate and the terminal post. This structural adjustment can change the installation order of each component, so that the terminal post can be installed separately with the stator lead without affecting the sealing performance, and there is no need to reserve the length of the stator lead. The length of the stator lead before and after assembly can remain unchanged, and no bending will occur, thereby improving safety. Moreover, the mounting plate is placed inside the motor housing, and the motor coolant will take away the heat of the mounting plate, thereby solving the problem of high temperature of the mounting plate and the terminal post. At the same time, since the terminal post is connected to the stator lead separately, it can be disassembled separately during disassembly, which is convenient for maintenance and repair.

[0019] 2. In the present invention, the terminal post is a square brass post, which has good electrical conductivity and thermal conductivity, as well as high strength and corrosion resistance.

[0020] 3. In the utility model, a sealing groove facing outward is provided on the outer ring of the fixed threaded hole on the mounting plate, and a sealing ring for sealing between the mounting plate and the terminal board is placed between the sealing grooves to ensure the sealing between the mounting plate and the terminal board. Since the sealing groove is provided on the outer ring of the fixed threaded hole, the overall sealing performance can be improved, and the sealing ring can be a rubber ring.

[0021] 4. In the present invention, there are three insulators, which are arranged closely around the periphery of the terminal from the inside to the outside, and mounting grooves for mounting a mounting plate are formed between the peripheral surfaces of the three insulators, so as to better install the mounting plate while ensuring the sealing and insulation of the terminal.

[0022] 5. In the present utility model, three mounting holes are provided on the wiring board, and the three wiring structures are respectively installed in the mounting holes, so as to meet the conventional motor wiring requirements.

[0023] 6. In this utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0024] 7. In the present utility model, the orientation or position relationship indicated by the terms "center", "upper", "lower", "axial", "bottom", "inner", "outer", etc. is based on the orientation or position assembly relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0025] 8. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0026] Due to the application of the above scheme, the utility model has the following advantages and effects compared with the prior art:

[0027] 1. Compared with the existing installation method of first installing the terminal on the terminal board and then installing it on the motor housing, the lead wire needs to be pulled out during installation, and the lead wire is in a bent state after installation. The structural terminal of the utility model can be installed separately with the lead wire. There is no need to reserve the length of the lead wire, and the length of the lead wire before and after assembly can remain unchanged, and no bending will occur, which improves safety.

[0028] 2. Compared with the prior art in which the terminal mounting plate is outside the motor housing (air environment), the temperature caused by the eddy current cannot be dissipated. The terminal mounting plate of the utility model is placed inside the compressor (cooling environment), and the coolant will take away the heat, solving the problem of high temperature of the mounting plate and the terminal, and avoiding affecting the performance of the motor and the compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the existing motor wiring structure;

[0030] Figure 2 It is a schematic diagram of the wiring structure of the motor of the utility model;

[0031] Figure 3 for Figure 2 A local enlarged schematic diagram in FIG.

[0032] Figure 4 It is a schematic diagram of the wiring structure in the embodiment of the utility model.

[0033] The various parts of the above drawings are shown as follows:

[0034] 1. Wiring structure;

[0035] 11. Terminals;

[0036] 111, lead hole;

[0037] 12. Mounting plate;

[0038] 121, fixing threaded hole;

[0039] 122, sealing groove;

[0040] 13. Insulator;

[0041] 130, mounting slot;

[0042] 14. Sealing ring;

[0043] 2. Motor;

[0044] 21. Motor housing;

[0045] 22. Motor stator;

[0046] 23. Stator lead wire;

[0047] 24. Terminal block;

[0048] 25. Tighten the screws. DETAILED DESCRIPTION

[0049] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0050] Embodiment 1, as attached Figure 2 To Attachment Figure 4 As shown, the embodiment of the utility model discloses a wiring structure 1, which is used for wiring of a motor 2, wherein the motor 2 has a motor housing 21, a motor stator 22, a stator lead 23, and a terminal block 24; a plurality of mounting holes are provided on the terminal block 24, and a plurality of the wiring structures 1 are respectively installed in each of the mounting holes; the wiring structure 1 comprises a mounting plate 12, a terminal post 11, and an insulator 13; the terminal post 11 is a columnar conductor used to connect the inner and outer leads of the motor stator 22, and lead holes 111 are provided at both ends of the terminal post 11; the mounting plate 12 is sleeved on the terminal post 11, and a fixing threaded hole 121 is provided on the mounting plate 12 toward the outside, and the mounting plate 12 is fixedly mounted on the inner side of the terminal plate 24, and the mounting plate 12 is located inside the motor housing 21; a plurality of the insulators 13 for insulation and sealing are provided between the mounting plate 12 and the terminal post 11.

[0051] In the first embodiment of the present invention, the terminal post 11 is a square brass post, which has good electrical conductivity and thermal conductivity, as well as high strength and corrosion resistance.

[0052] In the first embodiment of the utility model, a sealing groove 122 facing outward is provided on the outer ring of the fixing threaded hole 121 on the mounting plate 12, and a sealing ring 14 for sealing between the mounting plate 12 and the terminal board 24 is placed between the sealing grooves 122 to ensure the sealing between the mounting plate 12 and the terminal board 24. Since the sealing groove 122 is provided on the outer ring of the fixing threaded hole 121, the overall sealing performance can be improved.

[0053] In the first embodiment of the present invention, there are three insulators 13, which are arranged closely around the periphery of the terminal 11 from the inside to the outside, and a mounting groove 130 for mounting the mounting plate 12 is formed between the peripheral surfaces of the three insulators 13, so as to better install the mounting plate 12 while ensuring the sealing and insulation of the terminal 11.

[0054] In the first embodiment of the present invention, three mounting holes are provided on the wiring board 24, and the three wiring structures 1 are respectively installed in the mounting holes, so as to meet the conventional motor wiring requirements.

[0055] Through the implementation of the first embodiment of the utility model, some problems existing in the installation process and use process of the existing motor wiring structure 1 are studied and designed, and the overall structure of the wiring structure 1 is improved, wherein the mounting plate 12 is sleeved on the terminal 11, and the mounting plate 12 is fixedly mounted on the inner side of the terminal plate 24, and the mounting plate 12 is located inside the motor housing 21. A plurality of insulators 13 for insulation and sealing are arranged between the mounting plate 12 and the terminal 11. This structural adjustment can change the installation order of each component, so that the terminal 11 can be installed separately with the stator lead 23 without affecting the sealing performance, and there is no need to reserve the length of the stator lead 23. The length of the stator lead 23 before and after assembly can remain unchanged, and no bending will occur, and the safety is improved. The mounting plate 12 is placed inside the motor housing 21, and the motor coolant will take away the heat of the mounting plate 12, which solves the problem of high temperature of the mounting plate 12 and the terminal 11. At the same time, since the terminal 11 is connected to the stator lead 23 separately, it can be disassembled separately during disassembly, which is convenient for maintenance and repair.

[0056] The installation process of the wiring structure 1 on the compressor motor can be referred to as follows:

[0057] 1. After the motor stator 22 is installed in the motor housing 21, first connect the terminal 11 to the stator lead 23;

[0058] 2. Place the sealing ring 14 in the sealing groove 122 on the mounting plate 12, and then place the sealing ring 14 of the terminal block 24 into the sealing groove 122 of the motor housing 21;

[0059] 3. Pass the terminal post 11 through the terminal board 24, and use the fastening screws 25 to pass through the terminal board 24 and the mounting plate 12 to fix the mounting plate 12 on the terminal board 24;

[0060] 4. Install the fixing screws on the terminal block 24 to fix the terminal block 24 on the motor housing 21 to complete the installation.

[0061] Embodiment 2. Embodiment 2 of the present invention proposes a motor, which comprises a motor housing 21, a motor stator 22, a stator lead 23, and a terminal block 24. A main shaft is rotatably connected inside the motor housing 21, and a motor rotor is installed on the main shaft. The motor stator 22 of the compressor is installed in the motor housing 21, and the stator lead 23 of the motor stator 22 is led out through a wiring structure 1 on the terminal block 24. The wiring structure 1 comprises a mounting plate 12, a terminal post 11, and an insulator 13.

[0062] Embodiment 3: Embodiment 3 of the present invention provides a compressor, and the compressor uses the wiring structure 1 described in Embodiment 1 of the present invention.

[0063] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A wiring structure (1) for wiring a motor, wherein the motor (2) comprises a motor housing (21), a motor stator (22), a stator lead (23), and a wiring board (24); characterized in that: A plurality of mounting holes are provided on the wiring board (24), and a plurality of the wiring structures (1) are respectively mounted in each of the mounting holes; The wiring structure (1) comprises a wiring post (11), a mounting plate (12), and an insulator (13); The terminal post (11) is a columnar conductor used to connect the inner and outer leads of the motor stator (22), and lead holes (111) are provided at both ends of the terminal post (11); The mounting plate (12) is sleeved on the terminal post (11), a fixing threaded hole (121) is opened on the mounting plate (12) toward the outside, the mounting plate (12) is fixedly mounted on the inner side of the terminal plate (24), and the mounting plate (12) is located inside the motor housing (21); A plurality of insulators (13) for insulation and sealing are arranged between the mounting plate (12) and the terminal post (11).

2. A wiring structure (1) according to claim 1, characterized in that: The terminal post (11) is a square brass post.

3. A wiring structure (1) according to claim 2, characterized in that: The mounting plate (12) is provided with a sealing groove (122) facing outward on the outer ring of the fixing threaded hole (121), and a sealing ring (14) for sealing between the mounting plate (12) and the wiring board (24) is placed between the sealing grooves (122).

4. A wiring structure (1) according to claim 1, characterized in that: The number of the insulators (13) is three, and the three insulators (13) are arranged closely to the periphery of the terminal (11) from the inside to the outside, and a mounting groove (130) for mounting the mounting plate (12) is formed between the peripheral side surfaces of the three insulators (13).

5. A wiring structure (1) according to claim 4, characterized in that: The wiring board (24) is provided with three mounting holes, and the three wiring structures (1) are respectively mounted in each of the mounting holes.

6. A motor, characterized in that: The motor uses the connection structure (1) according to any one of claims 1 to 5.

7. A compressor, characterized in that: The compressor uses the wiring structure (1) according to any one of claims 1 to 5.

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